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FFmpeg/libavcodec/vp9recon.c
Andreas Rheinhardt 7bd3b73716 avcodec/vp9: Switch to ProgressFrames 
This already fixes a race in the vp9-encparams test. In this test,
side data is added to the current frame after having been decoded
(and therefore after ff_thread_finish_setup() has been called).
Yet the update_thread_context callback called ff_thread_ref_frame()
and therefore av_frame_ref() with this frame as source frame and
the ensuing read was unsynchronised with adding the side data,
i.e. there was a data race.

By switching to the ProgressFrame API the implicit av_frame_ref()
is removed and the race fixed except if this frame is later reused by
a show-existing-frame which uses an explicit av_frame_ref().
The vp9-encparams test does not cover this, so this commit
already fixes all the races in this test.

This decoder kept multiple references to the same ThreadFrames
in the same context and therefore had lots of implicit av_frame_ref()
even when decoding single-threaded. This incurred lots of small
allocations: When decoding an ordinary 10s video in single-threaded
mode the number of allocations reported by Valgrind went down
from 57,814 to 20,908; for 10 threads it went down from 84,223 to
21,901.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-04-19 13:18:04 +02:00

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/*
* VP9 compatible video decoder
*
* Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
* Copyright (C) 2013 Clément Bœsch <u pkh me>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avassert.h"
#include "libavutil/frame.h"
#include "libavutil/mem_internal.h"
#include "progressframe.h"
#include "videodsp.h"
#include "vp9data.h"
#include "vp9dec.h"
static av_always_inline int check_intra_mode(VP9TileData *td, int mode, uint8_t **a,
uint8_t *dst_edge, ptrdiff_t stride_edge,
uint8_t *dst_inner, ptrdiff_t stride_inner,
uint8_t *l, int col, int x, int w,
int row, int y, enum TxfmMode tx,
int p, int ss_h, int ss_v, int bytesperpixel)
{
const VP9Context *s = td->s;
int have_top = row > 0 || y > 0;
int have_left = col > td->tile_col_start || x > 0;
int have_right = x < w - 1;
int bpp = s->s.h.bpp;
static const uint8_t mode_conv[10][2 /* have_left */][2 /* have_top */] = {
[VERT_PRED] = { { DC_127_PRED, VERT_PRED },
{ DC_127_PRED, VERT_PRED } },
[HOR_PRED] = { { DC_129_PRED, DC_129_PRED },
{ HOR_PRED, HOR_PRED } },
[DC_PRED] = { { DC_128_PRED, TOP_DC_PRED },
{ LEFT_DC_PRED, DC_PRED } },
[DIAG_DOWN_LEFT_PRED] = { { DC_127_PRED, DIAG_DOWN_LEFT_PRED },
{ DC_127_PRED, DIAG_DOWN_LEFT_PRED } },
[DIAG_DOWN_RIGHT_PRED] = { { DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_RIGHT_PRED },
{ DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_RIGHT_PRED } },
[VERT_RIGHT_PRED] = { { VERT_RIGHT_PRED, VERT_RIGHT_PRED },
{ VERT_RIGHT_PRED, VERT_RIGHT_PRED } },
[HOR_DOWN_PRED] = { { HOR_DOWN_PRED, HOR_DOWN_PRED },
{ HOR_DOWN_PRED, HOR_DOWN_PRED } },
[VERT_LEFT_PRED] = { { DC_127_PRED, VERT_LEFT_PRED },
{ DC_127_PRED, VERT_LEFT_PRED } },
[HOR_UP_PRED] = { { DC_129_PRED, DC_129_PRED },
{ HOR_UP_PRED, HOR_UP_PRED } },
[TM_VP8_PRED] = { { DC_129_PRED, VERT_PRED },
{ HOR_PRED, TM_VP8_PRED } },
};
static const struct {
uint8_t needs_left:1;
uint8_t needs_top:1;
uint8_t needs_topleft:1;
uint8_t needs_topright:1;
uint8_t invert_left:1;
} edges[N_INTRA_PRED_MODES] = {
[VERT_PRED] = { .needs_top = 1 },
[HOR_PRED] = { .needs_left = 1 },
[DC_PRED] = { .needs_top = 1, .needs_left = 1 },
[DIAG_DOWN_LEFT_PRED] = { .needs_top = 1, .needs_topright = 1 },
[DIAG_DOWN_RIGHT_PRED] = { .needs_left = 1, .needs_top = 1,
.needs_topleft = 1 },
[VERT_RIGHT_PRED] = { .needs_left = 1, .needs_top = 1,
.needs_topleft = 1 },
[HOR_DOWN_PRED] = { .needs_left = 1, .needs_top = 1,
.needs_topleft = 1 },
[VERT_LEFT_PRED] = { .needs_top = 1, .needs_topright = 1 },
[HOR_UP_PRED] = { .needs_left = 1, .invert_left = 1 },
[TM_VP8_PRED] = { .needs_left = 1, .needs_top = 1,
.needs_topleft = 1 },
[LEFT_DC_PRED] = { .needs_left = 1 },
[TOP_DC_PRED] = { .needs_top = 1 },
[DC_128_PRED] = { 0 },
[DC_127_PRED] = { 0 },
[DC_129_PRED] = { 0 }
};
av_assert2(mode >= 0 && mode < 10);
mode = mode_conv[mode][have_left][have_top];
if (edges[mode].needs_top) {
uint8_t *top, *topleft;
int n_px_need = 4 << tx, n_px_have = (((s->cols - col) << !ss_h) - x) * 4;
int n_px_need_tr = 0;
if (tx == TX_4X4 && edges[mode].needs_topright && have_right)
n_px_need_tr = 4;
// if top of sb64-row, use s->intra_pred_data[] instead of
// dst[-stride] for intra prediction (it contains pre- instead of
// post-loopfilter data)
if (have_top) {
top = !(row & 7) && !y ?
s->intra_pred_data[p] + (col * (8 >> ss_h) + x * 4) * bytesperpixel :
y == 0 ? &dst_edge[-stride_edge] : &dst_inner[-stride_inner];
if (have_left)
topleft = !(row & 7) && !y ?
s->intra_pred_data[p] + (col * (8 >> ss_h) + x * 4) * bytesperpixel :
y == 0 || x == 0 ? &dst_edge[-stride_edge] :
&dst_inner[-stride_inner];
}
if (have_top &&
(!edges[mode].needs_topleft || (have_left && top == topleft)) &&
(tx != TX_4X4 || !edges[mode].needs_topright || have_right) &&
n_px_need + n_px_need_tr <= n_px_have) {
*a = top;
} else {
if (have_top) {
if (n_px_need <= n_px_have) {
memcpy(*a, top, n_px_need * bytesperpixel);
} else {
#define memset_bpp(c, i1, v, i2, num) do { \
if (bytesperpixel == 1) { \
memset(&(c)[(i1)], (v)[(i2)], (num)); \
} else { \
int n, val = AV_RN16A(&(v)[(i2) * 2]); \
for (n = 0; n < (num); n++) { \
AV_WN16A(&(c)[((i1) + n) * 2], val); \
} \
} \
} while (0)
memcpy(*a, top, n_px_have * bytesperpixel);
memset_bpp(*a, n_px_have, (*a), n_px_have - 1, n_px_need - n_px_have);
}
} else {
#define memset_val(c, val, num) do { \
if (bytesperpixel == 1) { \
memset((c), (val), (num)); \
} else { \
int n; \
for (n = 0; n < (num); n++) { \
AV_WN16A(&(c)[n * 2], (val)); \
} \
} \
} while (0)
memset_val(*a, (128 << (bpp - 8)) - 1, n_px_need);
}
if (edges[mode].needs_topleft) {
if (have_left && have_top) {
#define assign_bpp(c, i1, v, i2) do { \
if (bytesperpixel == 1) { \
(c)[(i1)] = (v)[(i2)]; \
} else { \
AV_COPY16(&(c)[(i1) * 2], &(v)[(i2) * 2]); \
} \
} while (0)
assign_bpp(*a, -1, topleft, -1);
} else {
#define assign_val(c, i, v) do { \
if (bytesperpixel == 1) { \
(c)[(i)] = (v); \
} else { \
AV_WN16A(&(c)[(i) * 2], (v)); \
} \
} while (0)
assign_val((*a), -1, (128 << (bpp - 8)) + (have_top ? +1 : -1));
}
}
if (tx == TX_4X4 && edges[mode].needs_topright) {
if (have_top && have_right &&
n_px_need + n_px_need_tr <= n_px_have) {
memcpy(&(*a)[4 * bytesperpixel], &top[4 * bytesperpixel], 4 * bytesperpixel);
} else {
memset_bpp(*a, 4, *a, 3, 4);
}
}
}
}
if (edges[mode].needs_left) {
if (have_left) {
int n_px_need = 4 << tx, i, n_px_have = (((s->rows - row) << !ss_v) - y) * 4;
uint8_t *dst = x == 0 ? dst_edge : dst_inner;
ptrdiff_t stride = x == 0 ? stride_edge : stride_inner;
if (edges[mode].invert_left) {
if (n_px_need <= n_px_have) {
for (i = 0; i < n_px_need; i++)
assign_bpp(l, i, &dst[i * stride], -1);
} else {
for (i = 0; i < n_px_have; i++)
assign_bpp(l, i, &dst[i * stride], -1);
memset_bpp(l, n_px_have, l, n_px_have - 1, n_px_need - n_px_have);
}
} else {
if (n_px_need <= n_px_have) {
for (i = 0; i < n_px_need; i++)
assign_bpp(l, n_px_need - 1 - i, &dst[i * stride], -1);
} else {
for (i = 0; i < n_px_have; i++)
assign_bpp(l, n_px_need - 1 - i, &dst[i * stride], -1);
memset_bpp(l, 0, l, n_px_need - n_px_have, n_px_need - n_px_have);
}
}
} else {
memset_val(l, (128 << (bpp - 8)) + 1, 4 << tx);
}
}
return mode;
}
static av_always_inline void intra_recon(VP9TileData *td, ptrdiff_t y_off,
ptrdiff_t uv_off, int bytesperpixel)
{
const VP9Context *s = td->s;
VP9Block *b = td->b;
int row = td->row, col = td->col;
int w4 = ff_vp9_bwh_tab[1][b->bs][0] << 1, step1d = 1 << b->tx, n;
int h4 = ff_vp9_bwh_tab[1][b->bs][1] << 1, x, y, step = 1 << (b->tx * 2);
int end_x = FFMIN(2 * (s->cols - col), w4);
int end_y = FFMIN(2 * (s->rows - row), h4);
int tx = 4 * s->s.h.lossless + b->tx, uvtx = b->uvtx + 4 * s->s.h.lossless;
int uvstep1d = 1 << b->uvtx, p;
uint8_t *dst = td->dst[0], *dst_r = s->s.frames[CUR_FRAME].tf.f->data[0] + y_off;
LOCAL_ALIGNED_32(uint8_t, a_buf, [96]);
LOCAL_ALIGNED_32(uint8_t, l, [64]);
for (n = 0, y = 0; y < end_y; y += step1d) {
uint8_t *ptr = dst, *ptr_r = dst_r;
for (x = 0; x < end_x; x += step1d, ptr += 4 * step1d * bytesperpixel,
ptr_r += 4 * step1d * bytesperpixel, n += step) {
int mode = b->mode[b->bs > BS_8x8 && b->tx == TX_4X4 ?
y * 2 + x : 0];
uint8_t *a = &a_buf[32];
enum TxfmType txtp = ff_vp9_intra_txfm_type[mode];
int eob = b->skip ? 0 : b->tx > TX_8X8 ? AV_RN16A(&td->eob[n]) : td->eob[n];
mode = check_intra_mode(td, mode, &a, ptr_r,
s->s.frames[CUR_FRAME].tf.f->linesize[0],
ptr, td->y_stride, l,
col, x, w4, row, y, b->tx, 0, 0, 0, bytesperpixel);
s->dsp.intra_pred[b->tx][mode](ptr, td->y_stride, l, a);
if (eob)
s->dsp.itxfm_add[tx][txtp](ptr, td->y_stride,
td->block + 16 * n * bytesperpixel, eob);
}
dst_r += 4 * step1d * s->s.frames[CUR_FRAME].tf.f->linesize[0];
dst += 4 * step1d * td->y_stride;
}
// U/V
w4 >>= s->ss_h;
end_x >>= s->ss_h;
end_y >>= s->ss_v;
step = 1 << (b->uvtx * 2);
for (p = 0; p < 2; p++) {
dst = td->dst[1 + p];
dst_r = s->s.frames[CUR_FRAME].tf.f->data[1 + p] + uv_off;
for (n = 0, y = 0; y < end_y; y += uvstep1d) {
uint8_t *ptr = dst, *ptr_r = dst_r;
for (x = 0; x < end_x; x += uvstep1d, ptr += 4 * uvstep1d * bytesperpixel,
ptr_r += 4 * uvstep1d * bytesperpixel, n += step) {
int mode = b->uvmode;
uint8_t *a = &a_buf[32];
int eob = b->skip ? 0 : b->uvtx > TX_8X8 ? AV_RN16A(&td->uveob[p][n]) : td->uveob[p][n];
mode = check_intra_mode(td, mode, &a, ptr_r,
s->s.frames[CUR_FRAME].tf.f->linesize[1],
ptr, td->uv_stride, l, col, x, w4, row, y,
b->uvtx, p + 1, s->ss_h, s->ss_v, bytesperpixel);
s->dsp.intra_pred[b->uvtx][mode](ptr, td->uv_stride, l, a);
if (eob)
s->dsp.itxfm_add[uvtx][DCT_DCT](ptr, td->uv_stride,
td->uvblock[p] + 16 * n * bytesperpixel, eob);
}
dst_r += 4 * uvstep1d * s->s.frames[CUR_FRAME].tf.f->linesize[1];
dst += 4 * uvstep1d * td->uv_stride;
}
}
}
void ff_vp9_intra_recon_8bpp(VP9TileData *td, ptrdiff_t y_off, ptrdiff_t uv_off)
{
intra_recon(td, y_off, uv_off, 1);
}
void ff_vp9_intra_recon_16bpp(VP9TileData *td, ptrdiff_t y_off, ptrdiff_t uv_off)
{
intra_recon(td, y_off, uv_off, 2);
}
static av_always_inline void mc_luma_unscaled(VP9TileData *td, const vp9_mc_func (*mc)[2],
uint8_t *dst, ptrdiff_t dst_stride,
const uint8_t *ref, ptrdiff_t ref_stride,
const ProgressFrame *ref_frame,
ptrdiff_t y, ptrdiff_t x, const VP9mv *mv,
int bw, int bh, int w, int h, int bytesperpixel)
{
const VP9Context *s = td->s;
int mx = mv->x, my = mv->y, th;
y += my >> 3;
x += mx >> 3;
ref += y * ref_stride + x * bytesperpixel;
mx &= 7;
my &= 7;
// FIXME bilinear filter only needs 0/1 pixels, not 3/4
// we use +7 because the last 7 pixels of each sbrow can be changed in
// the longest loopfilter of the next sbrow
th = (y + bh + 4 * !!my + 7) >> 6;
ff_progress_frame_await(ref_frame, FFMAX(th, 0));
// The arm/aarch64 _hv filters read one more row than what actually is
// needed, so switch to emulated edge one pixel sooner vertically
// (!!my * 5) than horizontally (!!mx * 4).
if (x < !!mx * 3 || y < !!my * 3 ||
x + !!mx * 4 > w - bw || y + !!my * 5 > h - bh) {
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
ref - !!my * 3 * ref_stride - !!mx * 3 * bytesperpixel,
160, ref_stride,
bw + !!mx * 7, bh + !!my * 7,
x - !!mx * 3, y - !!my * 3, w, h);
ref = td->edge_emu_buffer + !!my * 3 * 160 + !!mx * 3 * bytesperpixel;
ref_stride = 160;
}
mc[!!mx][!!my](dst, dst_stride, ref, ref_stride, bh, mx << 1, my << 1);
}
static av_always_inline void mc_chroma_unscaled(VP9TileData *td, const vp9_mc_func (*mc)[2],
uint8_t *dst_u, uint8_t *dst_v,
ptrdiff_t dst_stride,
const uint8_t *ref_u, ptrdiff_t src_stride_u,
const uint8_t *ref_v, ptrdiff_t src_stride_v,
const ProgressFrame *ref_frame,
ptrdiff_t y, ptrdiff_t x, const VP9mv *mv,
int bw, int bh, int w, int h, int bytesperpixel)
{
const VP9Context *s = td->s;
int mx = mv->x * (1 << !s->ss_h), my = mv->y * (1 << !s->ss_v), th;
y += my >> 4;
x += mx >> 4;
ref_u += y * src_stride_u + x * bytesperpixel;
ref_v += y * src_stride_v + x * bytesperpixel;
mx &= 15;
my &= 15;
// FIXME bilinear filter only needs 0/1 pixels, not 3/4
// we use +7 because the last 7 pixels of each sbrow can be changed in
// the longest loopfilter of the next sbrow
th = (y + bh + 4 * !!my + 7) >> (6 - s->ss_v);
ff_progress_frame_await(ref_frame, FFMAX(th, 0));
// The arm/aarch64 _hv filters read one more row than what actually is
// needed, so switch to emulated edge one pixel sooner vertically
// (!!my * 5) than horizontally (!!mx * 4).
if (x < !!mx * 3 || y < !!my * 3 ||
x + !!mx * 4 > w - bw || y + !!my * 5 > h - bh) {
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
ref_u - !!my * 3 * src_stride_u - !!mx * 3 * bytesperpixel,
160, src_stride_u,
bw + !!mx * 7, bh + !!my * 7,
x - !!mx * 3, y - !!my * 3, w, h);
ref_u = td->edge_emu_buffer + !!my * 3 * 160 + !!mx * 3 * bytesperpixel;
mc[!!mx][!!my](dst_u, dst_stride, ref_u, 160, bh, mx, my);
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
ref_v - !!my * 3 * src_stride_v - !!mx * 3 * bytesperpixel,
160, src_stride_v,
bw + !!mx * 7, bh + !!my * 7,
x - !!mx * 3, y - !!my * 3, w, h);
ref_v = td->edge_emu_buffer + !!my * 3 * 160 + !!mx * 3 * bytesperpixel;
mc[!!mx][!!my](dst_v, dst_stride, ref_v, 160, bh, mx, my);
} else {
mc[!!mx][!!my](dst_u, dst_stride, ref_u, src_stride_u, bh, mx, my);
mc[!!mx][!!my](dst_v, dst_stride, ref_v, src_stride_v, bh, mx, my);
}
}
#define mc_luma_dir(td, mc, dst, dst_ls, src, src_ls, tref, row, col, mv, \
px, py, pw, ph, bw, bh, w, h, i) \
mc_luma_unscaled(td, s->dsp.mc, dst, dst_ls, src, src_ls, tref, row, col, \
mv, bw, bh, w, h, bytesperpixel)
#define mc_chroma_dir(td, mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
row, col, mv, px, py, pw, ph, bw, bh, w, h, i) \
mc_chroma_unscaled(td, s->dsp.mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
row, col, mv, bw, bh, w, h, bytesperpixel)
#define SCALED 0
#define FN(x) x##_8bpp
#define BYTES_PER_PIXEL 1
#include "vp9_mc_template.c"
#undef FN
#undef BYTES_PER_PIXEL
#define FN(x) x##_16bpp
#define BYTES_PER_PIXEL 2
#include "vp9_mc_template.c"
#undef mc_luma_dir
#undef mc_chroma_dir
#undef FN
#undef BYTES_PER_PIXEL
#undef SCALED
static av_always_inline void mc_luma_scaled(VP9TileData *td, vp9_scaled_mc_func smc,
const vp9_mc_func (*mc)[2],
uint8_t *dst, ptrdiff_t dst_stride,
const uint8_t *ref, ptrdiff_t ref_stride,
const ProgressFrame *ref_frame,
ptrdiff_t y, ptrdiff_t x, const VP9mv *in_mv,
int px, int py, int pw, int ph,
int bw, int bh, int w, int h, int bytesperpixel,
const uint16_t *scale, const uint8_t *step)
{
const VP9Context *s = td->s;
if (s->s.frames[CUR_FRAME].tf.f->width == ref_frame->f->width &&
s->s.frames[CUR_FRAME].tf.f->height == ref_frame->f->height) {
mc_luma_unscaled(td, mc, dst, dst_stride, ref, ref_stride, ref_frame,
y, x, in_mv, bw, bh, w, h, bytesperpixel);
} else {
#define scale_mv(n, dim) (((int64_t)(n) * scale[dim]) >> 14)
int mx, my;
int refbw_m1, refbh_m1;
int th;
VP9mv mv;
mv.x = av_clip(in_mv->x, -(x + pw - px + 4) * 8, (s->cols * 8 - x + px + 3) * 8);
mv.y = av_clip(in_mv->y, -(y + ph - py + 4) * 8, (s->rows * 8 - y + py + 3) * 8);
// BUG libvpx seems to scale the two components separately. This introduces
// rounding errors but we have to reproduce them to be exactly compatible
// with the output from libvpx...
mx = scale_mv(mv.x * 2, 0) + scale_mv(x * 16, 0);
my = scale_mv(mv.y * 2, 1) + scale_mv(y * 16, 1);
y = my >> 4;
x = mx >> 4;
ref += y * ref_stride + x * bytesperpixel;
mx &= 15;
my &= 15;
refbw_m1 = ((bw - 1) * step[0] + mx) >> 4;
refbh_m1 = ((bh - 1) * step[1] + my) >> 4;
// FIXME bilinear filter only needs 0/1 pixels, not 3/4
// we use +7 because the last 7 pixels of each sbrow can be changed in
// the longest loopfilter of the next sbrow
th = (y + refbh_m1 + 4 + 7) >> 6;
ff_progress_frame_await(ref_frame, FFMAX(th, 0));
// The arm/aarch64 _hv filters read one more row than what actually is
// needed, so switch to emulated edge one pixel sooner vertically
// (y + 5 >= h - refbh_m1) than horizontally (x + 4 >= w - refbw_m1).
if (x < 3 || y < 3 || x + 4 >= w - refbw_m1 || y + 5 >= h - refbh_m1) {
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
ref - 3 * ref_stride - 3 * bytesperpixel,
288, ref_stride,
refbw_m1 + 8, refbh_m1 + 8,
x - 3, y - 3, w, h);
ref = td->edge_emu_buffer + 3 * 288 + 3 * bytesperpixel;
ref_stride = 288;
}
smc(dst, dst_stride, ref, ref_stride, bh, mx, my, step[0], step[1]);
}
}
static av_always_inline void mc_chroma_scaled(VP9TileData *td, vp9_scaled_mc_func smc,
const vp9_mc_func (*mc)[2],
uint8_t *dst_u, uint8_t *dst_v,
ptrdiff_t dst_stride,
const uint8_t *ref_u, ptrdiff_t src_stride_u,
const uint8_t *ref_v, ptrdiff_t src_stride_v,
const ProgressFrame *ref_frame,
ptrdiff_t y, ptrdiff_t x, const VP9mv *in_mv,
int px, int py, int pw, int ph,
int bw, int bh, int w, int h, int bytesperpixel,
const uint16_t *scale, const uint8_t *step)
{
const VP9Context *s = td->s;
if (s->s.frames[CUR_FRAME].tf.f->width == ref_frame->f->width &&
s->s.frames[CUR_FRAME].tf.f->height == ref_frame->f->height) {
mc_chroma_unscaled(td, mc, dst_u, dst_v, dst_stride, ref_u, src_stride_u,
ref_v, src_stride_v, ref_frame,
y, x, in_mv, bw, bh, w, h, bytesperpixel);
} else {
int mx, my;
int refbw_m1, refbh_m1;
int th;
VP9mv mv;
if (s->ss_h) {
// BUG https://code.google.com/p/webm/issues/detail?id=820
mv.x = av_clip(in_mv->x, -(x + pw - px + 4) * 16, (s->cols * 4 - x + px + 3) * 16);
mx = scale_mv(mv.x, 0) + (scale_mv(x * 16, 0) & ~15) + (scale_mv(x * 32, 0) & 15);
} else {
mv.x = av_clip(in_mv->x, -(x + pw - px + 4) * 8, (s->cols * 8 - x + px + 3) * 8);
mx = scale_mv(mv.x * 2, 0) + scale_mv(x * 16, 0);
}
if (s->ss_v) {
// BUG https://code.google.com/p/webm/issues/detail?id=820
mv.y = av_clip(in_mv->y, -(y + ph - py + 4) * 16, (s->rows * 4 - y + py + 3) * 16);
my = scale_mv(mv.y, 1) + (scale_mv(y * 16, 1) & ~15) + (scale_mv(y * 32, 1) & 15);
} else {
mv.y = av_clip(in_mv->y, -(y + ph - py + 4) * 8, (s->rows * 8 - y + py + 3) * 8);
my = scale_mv(mv.y * 2, 1) + scale_mv(y * 16, 1);
}
#undef scale_mv
y = my >> 4;
x = mx >> 4;
ref_u += y * src_stride_u + x * bytesperpixel;
ref_v += y * src_stride_v + x * bytesperpixel;
mx &= 15;
my &= 15;
refbw_m1 = ((bw - 1) * step[0] + mx) >> 4;
refbh_m1 = ((bh - 1) * step[1] + my) >> 4;
// FIXME bilinear filter only needs 0/1 pixels, not 3/4
// we use +7 because the last 7 pixels of each sbrow can be changed in
// the longest loopfilter of the next sbrow
th = (y + refbh_m1 + 4 + 7) >> (6 - s->ss_v);
ff_progress_frame_await(ref_frame, FFMAX(th, 0));
// The arm/aarch64 _hv filters read one more row than what actually is
// needed, so switch to emulated edge one pixel sooner vertically
// (y + 5 >= h - refbh_m1) than horizontally (x + 4 >= w - refbw_m1).
if (x < 3 || y < 3 || x + 4 >= w - refbw_m1 || y + 5 >= h - refbh_m1) {
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
ref_u - 3 * src_stride_u - 3 * bytesperpixel,
288, src_stride_u,
refbw_m1 + 8, refbh_m1 + 8,
x - 3, y - 3, w, h);
ref_u = td->edge_emu_buffer + 3 * 288 + 3 * bytesperpixel;
smc(dst_u, dst_stride, ref_u, 288, bh, mx, my, step[0], step[1]);
s->vdsp.emulated_edge_mc(td->edge_emu_buffer,
ref_v - 3 * src_stride_v - 3 * bytesperpixel,
288, src_stride_v,
refbw_m1 + 8, refbh_m1 + 8,
x - 3, y - 3, w, h);
ref_v = td->edge_emu_buffer + 3 * 288 + 3 * bytesperpixel;
smc(dst_v, dst_stride, ref_v, 288, bh, mx, my, step[0], step[1]);
} else {
smc(dst_u, dst_stride, ref_u, src_stride_u, bh, mx, my, step[0], step[1]);
smc(dst_v, dst_stride, ref_v, src_stride_v, bh, mx, my, step[0], step[1]);
}
}
}
#define mc_luma_dir(td, mc, dst, dst_ls, src, src_ls, tref, row, col, mv, \
px, py, pw, ph, bw, bh, w, h, i) \
mc_luma_scaled(td, s->dsp.s##mc, s->dsp.mc, dst, dst_ls, src, src_ls, tref, row, col, \
mv, px, py, pw, ph, bw, bh, w, h, bytesperpixel, \
s->mvscale[b->ref[i]], s->mvstep[b->ref[i]])
#define mc_chroma_dir(td, mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
row, col, mv, px, py, pw, ph, bw, bh, w, h, i) \
mc_chroma_scaled(td, s->dsp.s##mc, s->dsp.mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
row, col, mv, px, py, pw, ph, bw, bh, w, h, bytesperpixel, \
s->mvscale[b->ref[i]], s->mvstep[b->ref[i]])
#define SCALED 1
#define FN(x) x##_scaled_8bpp
#define BYTES_PER_PIXEL 1
#include "vp9_mc_template.c"
#undef FN
#undef BYTES_PER_PIXEL
#define FN(x) x##_scaled_16bpp
#define BYTES_PER_PIXEL 2
#include "vp9_mc_template.c"
#undef mc_luma_dir
#undef mc_chroma_dir
#undef FN
#undef BYTES_PER_PIXEL
#undef SCALED
static av_always_inline void inter_recon(VP9TileData *td, int bytesperpixel)
{
const VP9Context *s = td->s;
VP9Block *b = td->b;
int row = td->row, col = td->col;
if (s->mvscale[b->ref[0]][0] == REF_INVALID_SCALE ||
(b->comp && s->mvscale[b->ref[1]][0] == REF_INVALID_SCALE)) {
if (!s->td->error_info) {
s->td->error_info = AVERROR_INVALIDDATA;
av_log(NULL, AV_LOG_ERROR, "Bitstream not supported, "
"reference frame has invalid dimensions\n");
}
return;
}
if (s->mvscale[b->ref[0]][0] || (b->comp && s->mvscale[b->ref[1]][0])) {
if (bytesperpixel == 1) {
inter_pred_scaled_8bpp(td);
} else {
inter_pred_scaled_16bpp(td);
}
} else {
if (bytesperpixel == 1) {
inter_pred_8bpp(td);
} else {
inter_pred_16bpp(td);
}
}
if (!b->skip) {
/* mostly copied intra_recon() */
int w4 = ff_vp9_bwh_tab[1][b->bs][0] << 1, step1d = 1 << b->tx, n;
int h4 = ff_vp9_bwh_tab[1][b->bs][1] << 1, x, y, step = 1 << (b->tx * 2);
int end_x = FFMIN(2 * (s->cols - col), w4);
int end_y = FFMIN(2 * (s->rows - row), h4);
int tx = 4 * s->s.h.lossless + b->tx, uvtx = b->uvtx + 4 * s->s.h.lossless;
int uvstep1d = 1 << b->uvtx, p;
uint8_t *dst = td->dst[0];
// y itxfm add
for (n = 0, y = 0; y < end_y; y += step1d) {
uint8_t *ptr = dst;
for (x = 0; x < end_x; x += step1d,
ptr += 4 * step1d * bytesperpixel, n += step) {
int eob = b->tx > TX_8X8 ? AV_RN16A(&td->eob[n]) : td->eob[n];
if (eob)
s->dsp.itxfm_add[tx][DCT_DCT](ptr, td->y_stride,
td->block + 16 * n * bytesperpixel, eob);
}
dst += 4 * td->y_stride * step1d;
}
// uv itxfm add
end_x >>= s->ss_h;
end_y >>= s->ss_v;
step = 1 << (b->uvtx * 2);
for (p = 0; p < 2; p++) {
dst = td->dst[p + 1];
for (n = 0, y = 0; y < end_y; y += uvstep1d) {
uint8_t *ptr = dst;
for (x = 0; x < end_x; x += uvstep1d,
ptr += 4 * uvstep1d * bytesperpixel, n += step) {
int eob = b->uvtx > TX_8X8 ? AV_RN16A(&td->uveob[p][n]) : td->uveob[p][n];
if (eob)
s->dsp.itxfm_add[uvtx][DCT_DCT](ptr, td->uv_stride,
td->uvblock[p] + 16 * n * bytesperpixel, eob);
}
dst += 4 * uvstep1d * td->uv_stride;
}
}
}
}
void ff_vp9_inter_recon_8bpp(VP9TileData *td)
{
inter_recon(td, 1);
}
void ff_vp9_inter_recon_16bpp(VP9TileData *td)
{
inter_recon(td, 2);
}
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